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Biomedical subjects

M A Taylor

Publications and source records attributed to M A Taylor.

At least 19 recordsLinked to original sources
PubMed1979

Differential EEG patterns in affective disorder and schizophrenia.

We analyzed the EEGs of 27 schizophrenic patients and 132 patients with affective disorder who received diagnoses according to rigorous research criteria. The proportion of abnormal EEGs was twice as great among schizophrenics as among affectives, and when the groups were compared for localized cortical differences, schizophrenics had more temporal abnormalities and affectives more parieto/occipital abnormalities. There was also a trend toward different hemispheric lateralization for the two groups, with a reversal of the relative proportions of left- and right-sided abnormalities. These differences were unrelated to age, sex, severity of illness, or past or present drug administration. These findings are complementary to those of other workers, lend support to the validity of our diagnostic research criteria, and provide additional evidence for neurophysiological differences between schizophrenics and patients with affective disorder.

Adult↗
PubMed1979

Unipolar mania revisited.

In a more sophisticated replication of an earlier study (Abrams and Taylor 1974), we examined 77 manic patients, of whom 29 had never suffered a depressive illness, and had two or more manic attacks. These unipolar manics were similar to the 48 bipolar manics for a wide variety of clinical, phenomenological, historical, laboratory and demographic variables, generally supporting our earlier findings. However, the present sample showed a striking excess of males among the unipolar manics, as well as an increased morbid risk for unipolar depression in first-degree relatives. Although not readily explainable, these differences suggest that it is premature to equate unipolar mania with classical bipolar illness. Further studies of unipolar mania are in progress.

Adult↗
PubMed1979

Lateralized neuropsychological dysfunction in affective disorder and schizophrenia.

The authors compared the cognitive functioning of 22 schizophrenic patients, 105 patients with affective disorder, and 99 age-matched normal control subjects. Results of an aphasia screening test indicated that the schizophrenic patients made more total errors and more dominant temporal/temporoparietal errors than patients with affective disorders and that patients in both groups made more errors than controls. Patient sex, age, drug treatment received at test time, previous neuroleptic drug treatment, and severity of illness did not account for the differences. These findings support the validity of the authors' diagnostic research criteria and confirm prior reports of differences in dominant hemisphere dysfunction between schizophrenic patients and patients with affective disease.

Adult↗
PubMed1979

Implications of rubella susceptibility in young adults.

Rubella history and antibody titre were determined for 457 medical, graduate, and physician assistant students. Eighteen per cent were estimated at risk for rubella. There were no male-female differences. Health-profession students did not differ in rubella immune status from the general population. History was not helpful in assessing immune status. Approximately one-half of persons with low antibody titres had considered themselves immune, while one-half with moderate to high antibody titres had considered themselves at risk. Less than one-half of students with low antibody titres available themselves of immunization which was recommended and offered. With a high percentage of adult females at risk for rubella even in a health-motivated population and with poor follow-up on recommended immunization, current immunization practices must be improved if congenital rubella syndrome is to be further reduced. Mass inoculation of school age males and prepubertal school age females without prior determination of rubella antibody titres is suggested as a cost-effective means of decreasing incidence of congenital rubella syndrome.

Adult↗
PubMed1979

Catatonia and mania: patterns of cerebral dysfunction.

We performed a factor analysis on research data from 55 consecutive hospitalized psychiatric patients who showed one or more of eight catatonic motor features. Two factors were extracted, accounting for 32% of the variance. Factor 1 (mutism, negativism, stupor) corresponded to the clinical syndrome of negativistic stupor and was unrelated to diagnosis, sex, age at onset, family history, or treatment response. Factor 2 (mutism, stereotypy, catalepsy, automatic obedience) corresponded to the classical description of catatonia, was associated with a research diagnosis of mania, and tended (p less than 0.10) to predict a favorable treatment response. We suggest that the two factors may reflect different forms of cerebral dysfunction which, in the case of Factor 2, may provide clues as to the nature of the morbid process in mania. Republication is now in progress in a different sample.

Adult↗
PubMed1978

Prevalence of pathogenic yeasts and humoral antibodies to candida in diabetic patients.

The prevalence of oral yeasts and humoral precipitating antibodies to candida was estimated in 204 unselected diabetic patients (172 outpatients and 32 inpatients). Yeasts, mainly Candida albicans, were isolated from the mouths of 41% of the outpatients and precipitins were found in 17.5% although none of the patients had clinically overt candidiasis. The extent of oral yeast colonisation and incidence of antibodies was not related to their antidiabetic treatment or to the duration of their diabetes. It was, however, related to the blood glucose and urine sugar levels at the time they were sampled, the highest incidence being among the diabetic inpatients with high blood glucose levels at the time of sampling and the lowest among outpatients with normal blood glucose levels at the time of sampling. There was no such correlation when diabetic control over the previous 12-month period was considered.

Antibodies, Fungal↗
PubMed1978

A rating scale for emotional blunting.

Although emotional blunting has always been considered a core symptom of schizophrenia, it has been excluded from recently developed sets of diagnostic criteria because of its alleged unreliability. The authors describe a brief rating scale for emotional blunting that is highly reliable, predicts short-term treatment response, and discriminates between patients with affective disorder and schizophrenia. They suggest that this scale will permit restoration of the important criterion of emotional blunting to modern diagnostic systems, including that proposed for DSM-III.

Affective Symptoms↗
PubMed1978

The prevalence of schizophrenia: a reassessment using modern diagnostic criteria.

Using strict research diagnosis criteria, the authors found a hospital admission prevalence of schizophrenia of about 6%. Other recent studies yielded similar figures, with correspondingly low figures for the morbid risk of schizophrenia in the general population and in the relatives of schizophrenic probands. In view of the data supporting the validity of this "narrow" concept of schizophrenia, the authors suggest that the true prevalence of schizophrenia is much lower than generally accepted.

Epidemiologic Methods↗
PubMed1978

Response to lithium carbonate.

We examined the clinical and research records of 29 acutely ill hospitalized patients with affective disorder who received only lithium carbonate during their first week of treatment. Nineteen patients (Group I) could be continued on lithium ion alone, while 10 patients (Group 2) needed additional somatic treatment. Compared with Group 1, Group 2 patients were significantly younger at illness onset, more severely ill on admission, clinically more "colorful" in dress and behavior, stayed more than twice as long in the hospital, and (although not statistically significant) had more than twice the morbidity risk for affective disorder in first-degree relatives. At discharge, both groups were equally improved, and 70% of Group 2 patients were receiving lithium alone. We did not confirm previous reports that nonresponders to lithium alone (Group 2) were more overactive or paranoid--destructive or less euphoric--grandiose than responders to lithium alone (Group 1). Our Group 2 patients had a more severe or penetrant form of illness than our Group 1 patients, requiring neuroleptic drugs or ECT in addition to lithium therapy. Eventually, however, they had a satisfactory outcome, suggesting therapeutic optimism and tenacity even in those patients who initially fail lithium alone and require polytreatment.

Affective Symptoms↗
PubMed1978

Body fluid lithium measurements: severity of illness and prediction of outcome.

The authors measured lithium ion in saliva and serum 24 hr after a loading dose of lithium, and recorded the amount of lithium excreted in the urine during the 24-hr test period. Their results support previous work indicating a correlation between serum and mixed saliva lithium levels. On a subsample of manic patients, no correlation could be found between lithium retention and clinical outcome, age of onset, or pretreatment severity of illness. In addition, they were unable to confirm a prior report that the 24-hr postloading dose serum lithium level was a predictor of eventual therapeutic dosage.

Adult↗